Re: [PATCH net v4 1/2] genetlink: Reject joining multicast groups no family owns

[Jacob Keller]

On 11/3/2026 9:54 AM, Nicolas Dichtel wrote:
> Le 03/11/2026 à 17:12, Anil Kaushik a écrit :
>> Yes, this is a behaviour change, and I missed it in the commit message.
>> A bind() mask with an unowned ID now fails with -ENOENT and joins
>> nothing. I don't know of a program that does this.
>>
>> Ido, Nicolas, is this OK to keep, or should bind() skip unowned IDs?
>> I can send a new version if needed.
> It's ok for me, but if a regression occurs, a fix will be needed.
> I let others speak.
> 
> Nicolas

This sounds like it might fall under the "no breaking user space" even
if its quite silly... But I am not an expert here so I am not sure.

Thanks,
Jake